package cn.weegoo.config;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.aop.interceptor.AsyncUncaughtExceptionHandler;
import org.springframework.aop.interceptor.SimpleAsyncUncaughtExceptionHandler;
import org.springframework.boot.autoconfigure.task.TaskExecutionProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.scheduling.annotation.AsyncConfigurer;
import org.springframework.scheduling.annotation.EnableAsync;
import org.springframework.scheduling.annotation.EnableScheduling;
import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;

import java.util.concurrent.Executor;

@Configuration
@EnableAsync
@EnableScheduling
public class AsyncConfiguration implements AsyncConfigurer {

    private final Logger log = LoggerFactory.getLogger ( AsyncConfiguration.class );

    private final TaskExecutionProperties taskExecutionProperties;

    public AsyncConfiguration(TaskExecutionProperties taskExecutionProperties) {
        this.taskExecutionProperties = taskExecutionProperties;
    }

    @Override
    @Bean(name = "asyncTaskExecutor")
    public Executor getAsyncExecutor() {
        log.debug ( "Creating Async Task Executor" );
        ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor ( );
        executor.setCorePoolSize ( taskExecutionProperties.getPool ( ).getCoreSize ( ) );
        executor.setMaxPoolSize ( taskExecutionProperties.getPool ( ).getMaxSize ( ) );
        executor.setQueueCapacity ( taskExecutionProperties.getPool ( ).getQueueCapacity ( ) );
        executor.setThreadNamePrefix ( taskExecutionProperties.getThreadNamePrefix ( ) );
        return new ExceptionHandlingAsyncTaskExecutor ( executor );
    }

    @Override
    public AsyncUncaughtExceptionHandler getAsyncUncaughtExceptionHandler() {
        return new SimpleAsyncUncaughtExceptionHandler ( );
    }
}
